Safety razor



Feb. 9, 1932- TESTl 1,844,702

SAFETY RAZOR Filed April 20, 1931 HNVENTOR A hfmm Tm #5 ATTORNEYPatented F ab. 9, 1932 UNITED STATES PATENT OFFICE NICHOLAS TESTI, OFNEW YORK, N. Y., ASSIGNOR TO GILLETTE SAFETY RAZOR COM- PANY, OF'BOSTON,MASSACHUSETTS, A CORPORATION OF DELAWARE SAFETY RAZOR Application filedApril 20,

My invention relates to improvements in safety razors and isparticularly applicable to the class of safet razors having double edgeblades held in s aving position between clamping members.

An object of my invention is to provide a blade with novel means toposition itself in cooperation with one of the clamping members with itsedges in shaving relation to the guard.

In carrying out my invention I provide a blade having integralprojections extending at angles to the plane of the blade and sopositioned as to permit the side portions of the blade adjacent to thecuttin edges to be flexed in a blade holder, where y when the blade isplaced against one of the clamping members of a safety razor theproject-ions will not interfere with the proper clamping and bending ofthe blade in the holder.

My invention also comprises novel details of improvement that will behereinafter more fully set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings wherein:

Fig. l is a side view of a safety razor em- -bodying my invention;

Fig. 2 is a section on line 2, 2 in Fig. 1;

Fig. 3 is a perspective view of my improved blade;

Fig. l is a partly broken plan view, in section on line 4,4; in Fig. 2;;

Fig. 5 is a plan view of the guard memher;

Fig. 6 is a of blade;

Fig. 7 is an edge view of Fig. 6;

v Fig. 8 is a sectional view of a razor including the blade of Fig. 6;

Fig. 9 is a plan view of the guard member of Fig. 8; and

Fig. 10 is a plan view of another form of blade.

Similar numerals indicate corresponding parts in the several views.

My improved blade is indicated at 1, the same being shown provided withcutting edges 1a along opposite sides in a well known way. The blade isshown provided plan view of a modified form 1931.. Serial No. 531,316.

with projections 2 that extend angularly and obliquely therefrom in alateral direction, preferably both projections extending from same sideof the blade and in opposite directions. The projections 2 are shownlocated in the plane of the central portion of the blade, whereby theportions 3 of the blade that are between the cutting edges and theprojections 2 may be flexed suitably for adjustment with respect to theguard of the razor for shaving. In the form shown in Figs. 1 to 4 theblade is provided with slots 4: extendin inwardly from the ends of theblade ad acent to the projections 2, in a 1ongitudinal direction, wherebthe marginal portions 3 of the blade may he flexed freely.

flhe blade 1 is adapted to be clamped in a blade holder of a safetyrazor in a well known way, and the projections 2 are adapted tocooperate with one of the clamping members of the blade holder to retainthe blade in shaving position with respect to the guard member. 5indicates a guard member and 6 a cap or backing member for the blade,and 7 indicates a handle. The parts 5, 6 and 7 may be connected togetherfor clamping the blade between the guard member and the cap or backingmember in any desired way. i have illustrated the cap as provided with athreaded stem 8 operative in a threaded recess 8a in handle 7, wherebythe blade may be clamped between the members 5 and 6 in a well knownway.

One of the members, such as the guard member, is provided with means tocooperate with the projections 2 of the blade to retain the bladebetween the members 5 and 6 with the cutting edges of the blade inshaving position with respect to the guard teeth. In the form shown inFigs. 1 to 5 the guard member 5 is shown provided at its ends withoblique plane surfaces 9 against which the projections 2 of the bladeare adapted to fit to retain the blade in shaving position on saidmember. The surfaces 9 are shown located at an angle with respect to theplane of the blade receiv-v ing surface 10 of the guard member, andextend'in the direction of the projections 2, whereby when the blade islaid upon said surface 10 with the projections 2 in engagement with thesurfaces 9 the blade will be retained "from edge-wise and endwisedisplacement. The blade is shown provided with a centrally disposedaperture ll for the passage therethrough of the stem ,8, and the guardmember 5 is shown provided with an aperture 10a that will register withthe aperture 11 of the blade for the passage of said stem.

To retain the cap or backing member 6 in shavingv relation to the guardedges any desired means may be provided. I have, illustrated the cap 6as provided with studs 12, spaced on opposite sides of the stem 8, saidstuds being adapted to pass through the apertured portions lla of theblade and into open-- ings 13 in the guard member. The studs 12 areadapted to engage the guard member at the openings 13 to retain the capin shaving position against the blade. The studs are shown provided withouter end portions of dimensions to lit the openings 13 of the guard andsaid studs are also shown provided with reduced portions 12? between theon larged end portions 12a and the cap, whereby it a blade having studreceiving apertures that will receive the head portions 12a of the studsbe placed upon the guard member, which blade is not provided withprojections to engage the guard member to retain it in shaving positionthereon, said blade will not retained by the studs in shaving positionson the guard because the reduced portions 12b of the studs will notproperly engage said apertures of the blade, and the latter will beloose on the guard and will not be guided by the studs.

Referring to Figs. 6 to 9, the projections 2 from the blade, instead ofbeing at the ends of the latter, are located within the bound aries ormarginal edges of the blade and project laterally therefrom at anglesthereto to engage the guard member. 6 the projections 2 are illustratedas stamped from the material of the blade by means of slits 2a or theblade, leaving inner portions of the projections attached to the bladematerial. The projections 2 are shown bent outwardly from the blade andare adapted enter openings 13a in the guard member, 9) The openings aresuiiiciently long to receive the projections 2, as in 8, and the widthsof the projections 2 and the openings 13a in the guard substantiallcorrespond in such a way that when said blade is placed against theguard progections 2 enter openings 13c said projections will cooperatewith the sides of said openin s to retain the blade in shaving positionon too guard. The slits 2a, have portions extending longitudinallysubstantially parallel to the cutting edges of the blade, permitting theportions 3 of the blade to readily flex when clamped between the members5 and 6 of the razor.

It will be noted that the inner surfaces of the openings 13a constituteoppositely inrelates clined, blade-locating faces to correspond to thesurfaces 9 in the embodiment of my invention shown in Figs. 1 to 5. Theprojections or tongues 2 of the blade are shaped to conform to thesefaces and to locate the blade accurately by their engagement therewith.The openings 13s are also designed to lit the enlarged heads 120, or thestuds and these positively dete ine the relative position of the twoblade-cramping members. When the blade is positioned upon the guardmember 5, its tongues 2 extend below or beyond the heads 12a of thestuds.

ln 10 the blade is distinguished from the blade shown in 3 by theabsence of the slits a, yet the marginal portions 3 of the blade of Fig.10 may flex between the cutting edges and the adjacent ends or edges ofthe projections 2 for properly clamping the blade between members 5 and6 of the blade holderthe projections 2 cooperating with the surfaces 9of guard member in manner shown in Fig. 2c

l7] hen my improved blade is placed on guard the projections 2 of theblade will no sition the latter with its cutting edges in shhvingrelation to the guard teeth, and when the cap 2 is clamped against theblade, as in l, 2 and 8, the blade will be retained for shaving, theblade being bent or flexin in a desired way when fo shaving.

Having now described my invention l claim is:

i. A safety razor comprising blade clamping members and means to clampsaid mem- 'bers against a blade, one of said members having surfaca atits end located at an oblique angle to the blade receiving surface ofsaid member, and a blade having projections at its ends extendin ata'correspondin oblique angle the blade to engage the n named surfacessaid member to positio the cutting edges of the blade in shavrelation tosaid member.

2. A safety razor as set forth in claim. 1 which one member is providedwith openii and the other member is provided with stt adapted to litopenings, the blade being apertured to receive said studs.

3. A safety razor comprising blade cla members, means to clamp said memoso a blade, one of said members ha studs, the other member having openinreceive said stud an internally a e"- tured blade projections angletherefrom to cooperate wi h s member to position the blade in shaving 1tion to said member, said studs having duced portions adapted to looselyreceive c is apertures of said blade.

a safety razor comprising blade clamp ing members, means to clamp saidmembers against a blade, one of said members having longitudinallyextending openings, the other a a C clamped in position ill Gil

new. will member having studs adapted to fit within said openings toretain said members in shaving relation, and a blade having laterallyextending projections adapted to fit said openings to retain the bladein shaving rela tion to the member having said openings.

5. A safety razor blade adapted to be clamped in a position oftransverse curvature for shaving, and comprising a normally flat bodyportion sharpened at its longitudinal edges and having longitudinalslots at its ends spaced from said edges and defining between them anunsharpened tongue extending obliquely with respect'to the body of the yblade.

6. A safety razor blade adapted to be clam d in a position of transversecurvature for s aving, and comprising a normally flat body portionsharpened at a longitudinal edge and having slots extending inwardlyfrom each end and defining between them an elongated unsharpened tonguewhich is bent at an oblique angle to the plane of the blade.

7. A safety razor blade adapted to be clamped in aposition of transversecurvature for shaving, and comprising a body portion with exteriorsharpened edges and parallel, longitudinally-extending slots spacedwithin said cutting edges and defining betweenthem 50 a tongue extendingat an oblique angle in the body of the blade which is free of transversebending with the body of the blade. I

8. A safety razor comprising co-operating blade-clamping members, onehaving elongated slots with oppositely inclined bladelocating surfaces,and the other having studs arranged to fit within the slots, and a bladehaving inclined locating tongues adapted to fit upon the blade-locatingsurfaces of said 4 slots and to extend beyond the ends of said studs.

NICHOLAS TESTI.

